Nailing mechanism for heel-building machines.



W. WOLFE.

NAILING MECHANISM FORBEEL BUILDING MACHINES. APPLICATION FILED 1 113.12,1912.

1,1 15,998. Patented Nov; 3, 1914.

5 SHEETS-SHEET 1.

if 1 1E. 96

if I. 6%

A/Tof? MZMMM HE NORRIS PETERS cc. PHOTO-LITHCL. WASHINGTON, D. c.

W. WOLFE.

NAILING MECHANISM FOR HEEL BUILDING MACHINES.

APPLICATION FILED FEBJZ, 1912.

1,1 15,998. Patented Nov. 3, 1914.

5 SHEETS-SHEET 2.

272157- JMMof /rri m Nokms PETERS co PHUTn-l ITI-.1,, WASHINGTON, 1:. c.

W. WOLFE.

NAILING MECHANISM FOR HEEL BUILDING MACHINES.

APPLICATION FILED rmmz, 1912.

1,1 1 5,998, Patented N0v.3,1914.

5 SHEETSSHEET 3.

@1 1 94 flank" f7? THE NORRIS PETERS Co. PHOTO-Linda. WASHINGTON. D. c.

W. WOLFE.

NAILING MECHANISM FOR HEEL BUILDING MACHINES.

' APPLICATION FILED P151312, 1912.

1,1 1 5,998. Patented N0v.3, 1914.

6 SE%SSHEET n mi W i I 1 "M %4/J/4 M4177 27 fa @1114. M m;

W. WOLFE. NAILING MECHANISM FOB. HEELBUILD ING MACHINES.

APPLICATION FILED FEB. 12, 1912.

WILLIAM Wo rn, or s'r. LOUIS, MISSOURI;

NAILING MECHANISM, FOR nnEL-BUILnING AcnINEs.

To all whom it mag/concern 1 Be it known that I, WILLIAM lVorLrn,citizen of the United States, residingin the city of St. Louis and Stateof Missourhhave invented new and useful Improvements in NailingMechanism forI-Ieel-Building Machines, of which the followingis aspecification. a

This invention relates to improvements in heel building machines, andhasspecial reference to a novel construction and operation of nailingmechanism, operating in timed relation with a heel-forming mechanism tosuccessively supply the nails and drive them intothe heel.

The invention is concerned with novel means for continuously supplyingnails; with novel means for delivering the-nails so supplied to acarrier; andwith mechanism for driving the nails into the heel, certainof these features constituting, so tospealr, independent subjects ofinvention, while others serve as elements in novel combinationsincluding suchindependent features. I

In carrying out my invention I employ a nail reservoir and means foragitating the. same which operatestodeliver acontinuous supply of nailsto a pluralityof slots in an inclined race-way. At the foot of thisraceway the nails aresuccessively delivered to a temporary holder, andat a certain period of the operation of the machine the nails are forcedfrom this holderhand permitted to descend through chutes into a carrierassociated with a reciprocating part of the heel-forming mechanism. Attheproper time. such carrier is brought into position over the heelandthe nail-drivinganechanism is operated touforce the nails from thecarrienirito the heel. a

All of the operations described are per forined automatically, themachine being of the type inwhichmotion is automatically arrested aftereach reciprocation of theheelforming mechanism, t'o be again set inmotion at the willof the operator.

The. machine illustrated herein is of the same. general character as toconstruction and, mode of operation as that forming the subject-matterof a pending application filed by me January 3rd, 1911, Ser. No.600,611. As the present invention is concerned only with the nailingmechanism, I Will refer only briefly to those parts which are notdirectly involved in the present invention, but

Specification of Letters Patent;

Application filed February 12, 1912. Serial No. 677,040. v i

which arefullydescribed in my saidpend lng application, v f

In the accompanying drawingsFigure Patented Nov. 3, 1914.

1 is a view in front elevation of a machine constructed according tomyinvention; Fig. 2 1s a view in side elevation of the same;

. Fig.- 3 is a sectional view of the driving mechanism, the sectionbeing taken on the line33 of Fig. 2; Fig. is a plan view, on an enlargedscale, partly broken away, of the nail magazine and chute, together withcertain adjunctive parts for releasing the nails; F ig." 5 is alongitudinal sectional View taken on the line 55 of Fig. l; Fig.1 6 is aviewyin' end elevation andupartlyin section, on an enlarged scale, ofthenail-re leasing" mechanism; Fig. '7 is a sectional view onthe line 77 ofFlg. 6; Fig. 8 isa cross section onthe line 8.8 of Fig. 6, illus- Itrating-one of the'nail-controlling plates; Fig. 9 1s a view in rearelevation ofa portion of the na1l-releasing bar showing the manner I ofmounting the nail-releasing plates therein; Fig. 10 1s a planview, on anenlarged, scale, showing the construction of parts at the foot of therace-way;sFig. 11 is I a similar View onza larger scale, and partly insection, showing one of the spring-controlled .naileholding members;Fig. 12 is a I plan view of the: combined press-block and nail-holder orcarrier; section onthegline 18'13'of Fig. 1 2; Referring now to the,drawings, the Innineral 1 indicates the standard'of the machine onwhich.is'mounted anzupper framework 2,.supporting orhousing the majorportion of the operating mechanism.

u v I and Fig. 13 s a a Mounted inibearings in the frame 2 is a mainshaft 3 which is driven from a pulley elthrough the medium of a' clutch5. The

pulley l will be driven bya'suitable belt,

which, however, is not shown in the" drawings. Secured onfthe shaft 3 torotate therea with are two cams 6 and 7. mounted-at 8 in the framecentrally. of its upper end is a rocker arm 9, whichhas Pivotallyiocmounted in opposite sides at its top two I i I anti-friction rollers10, 11., whichare adapted to be alternatelyengaged by the cams 6 and 7to rock the lower end of the arm 9 backward and forward. Pivotally'secured to the lower end of the rocker arm 9 is one end of a link 12which, at itsother end, is

pivot-ally secured to, a ram '13 slidably .mounted n the frame." Thisram carries at its forward end a combined press-block and nail-holder 11 which is shown in detail in Figs. 12 and 13. As clearly described andshown in my pending application, this combined press-block andnail-holderis capable of vertical movement in an extension 15 formingthe end of the ram 13, and is normally held upward by a spring incasedin said extension. The press-block 14 is provided preferably with fourvertical apertures, one of said apertures, 16, being located at thecenter, and the other three apertures, 17, being located near thecircumference of the press-block in such manner as to form the points ofan imaginary isosceles triangle.

18 indicates spring arms which are secured at one end in the wall of thepress-block, and have their free ends bent to :;tend into the apertures16 and 17. The purpose of these sprin arms is to retain nails, such as19, in their respective apertures until such time as said nails aredriven into the compiled lifts. Secured on the frame 2 is a bracket 20which supports the upper end of a race way 21, shown in detail in Figs.4, 5, 10 and 11. Pivctally mounted at 22 at the upper end of thisrace-way is a nail box 23 having a removable, hinge-connected lid 24:and end 21 normally locked in position by a spring catch 25. The bottomof the nail box is provided with three longitudinally-extending V-shapedgrooves 26 which are of a size to permit the shanks of the nails to fallfreely therethrough but to retain the heads of the nails which arereceived in said V-shaped grooves so that they lie substantially flushwith the upper surface of the bottom of the nail box. Secured on thesides of the box toward its lower end is a clip 27 to which is pivotallysecured the upper end of a hanger 28. Pivotally connected to the lowerend of this hanger is a rod 29 which is pivotally connected at its lowerend, as indicated at 30, to a crank disk 31 near the periphery of thelatter. This crank disk is mounted onthe end of a shaft 32 which issupported near opposite ends in bearings33 provided at the ends of acast ing bolted on the frame of the machine. On the opposite'end of theshaft 32 is mounted a sprocket wheel 31- which is driven by a sprocketchain 35. This sprocket chain is driven from a small sprocket wheel 36fast on a stub shaft 3'? which is mounted at its inner ends in bearings(not shown) in the frame of the machine. On the hub of the pulley atthere is mounted a sprocket wheel 38, and on the end of a shaft 39,shown only in section, in Fig. 3, there is mounted a sprocket wheel 40.A sprocket chain 41 passes over the two sprocket wheels 3 38 and 40.Mounted on the shaft 37 is a large sprocket wheel 12 which is so locatedas to have its teeth engaged by the outer side of the sprocket chain 11.The chain passes over the small sprocket wheel 36, engages one side ofthe sprocket wheel 34, and then passes over a small sprocket wheel 13,which is fast on the end of a shaft 4: 1 mounted in bearings 45 on theside of the frame 2. The shaft 39, above referred to, is similarlymounted on the opposite side of the machine, and' these shafts l t and39 operate the two paste-applying devices, indicated, respectively, bythe numerals 46 and 47, through the medium of a sprocket drive 48 andgears a9 and 50. As the paste-applying device forms the subject-matterof a separate application it need not be described herein more indetail. As the shaft 32 is revolved through the driving mechanism shownmore clearly in Fig. 3, the crank disk 31 will operate to raise andlower the rod .29, which, in turn, causes an up and down movement orreciprocation of the nail box 23 on the pivot 22. This movement of thenail box 23 causes the nails therein to be agitated and to fall into theslots 26, in which they slide downwardly and enter corresponding slots51 formed in the race-way 21. Mounted on the upper side of the raceway21 to extend parallel therewith, and at a slight distance above theheads of the nails in the slots of said race-way, is a plate 52 securedin position by screws 53, the purpose of which is to prevent the nailsfrom riding upon each other and thus choking the feed. The lower end ofthe race-way 21 is supported on and connected by means of screws 53 to anaii support 5 1, which is provided at the upper end of a bracket arm 55secured on the side of the frame 2. The nail support 5st is providedwith an upwardly curved portion 56 provided with slots 57 which formcontinuations of the slots 51, and which curved portion merges into ahorizontal portion 58 of the nail support provided with three apertures59 which are entered by the slots 57. Each aperture 59 with its slot 57is preferably provided in a block 60, which blocks are inserted ingrooves formed in the nail support 51 and secured in position by meansof screws 61. Referring to Fig. 11, each of the blocks 60 is boredthrough from one side to provide a recess 62 having a' restrictedopening communicating with the aperture 59, which opening permits ametal 3' ball (33 to project part way into the aperture 59, said ballbeing normally held in such position by means of a spring 64: engaged bya screw 65 which likewise closes the outer opening of the recess 62.Secured on the under side of the nail support 54:, and formingcontinuations of the apertures 59, are three tubes 66 having in theirrear sides slots 67, said tubes being held in position by means ofbinding pins 68 mounted in rev these nails so as to permit them to tallcesses-in the horizontal part of the nail sup port and pressed nward aganst sa d tubes by meansof set screws 69. Adjust.

ably secured on each tube'66 bynieans ofa set screw 70 is a sleeve 71carrying atits lower end a nail tube 72, thelower ends of said nailtubes terminating above, and im mediately overthe apertures 17 in thepressblock and nail-holder li Asthenails slide down the race-way 21 theysuccessively enter the apertures 59, being retained therein by the balls63. i The mechanismf'or releasing through the nail tubes .72 into thecombined I tension 76 at its outer end,

ally mounted at 77 one end ofa lever 78 hav outer end portion bentdownward and.

- provided onthe hub 81 of .afcrank disk 82,

press-block and nail-hold M; ill be, described.

Securejd on the's ide of the nail support by means of a screw, Jis'abracket arm 74 hav'ing'ai horizontal portion 75, extending over andparallel with the upper-surface of thenail 'support and having an upwardeX- m which, is PIVOT,

ing its outward to provide an engaging end 79 which is adapted to beactuatedby' a lug 80 mounted 'on the main shaft Mountedin the horizontalportion 75 of the bracket 74 are three plungers83, each of which hassecured thereon a disk at by means of which it is pressednormallynplward by a spring seatedin a r'ecessj86, the disk Stbearingagainst an apertured' plate 87. secured onthe upperside of the member75, and throughwhich the upper ends of theiplungers 83 pro ject. Thesaid plunger-s have their lower endslocated immediately over andslightlyabove thejapertures 59in the nail support. The level-78 is providedonits under side with three dovetailed grooves, in each of which isinserted the lowerfmemberB S of an said lower portion beingpro-vL-shaped key, I vided with annaperture89, and the upright portion havingsecured therein one end ofapin 91 which is'slidably mounted in i thelever 78 and is held, against withdrawal by a cotter-pin,or thelike,-92. A spring 93" surrounding the pin 91, land located between theside of 'thelever '78 and the upright por spring 79 holds said levernormally in a lug 80 to engage the end, 7 90f thelever78,

thereby throwing said; lever downward and causing thejunder sides of thekeys to strike ll-P1561 ends ofthe plungers 83-and press theinjdownwardcI As this ocurs the lower ends of said plungers strike the heads of the,

nails in theapertures59 andpress them past p the balls 63 which arethereby moved inward against resistance of the springs 64. It

sometimes occurs, however, that one or more .of. the nails will fail tofeed, and it IS then 7 necessary to'operate the machine againso thatthe. missing nail may be supplied and driven into the heel. Toaccomplish this the-- operator presses, in thekeys controlling theplungersof the tubes through which nails have been fed, and on placingthe machine in operation only the plunger of the tube whichdid'notsupply' the nail will be 0peratedi ,Assuming, for illustration,that nails have'been supplied through the two tubes atthe right of Fig.6, andthat no nail,

had fallenthrough the tube'at the extreme operation. As the, lever-T8descends the two plungers 83 at the right will simply pass through theapparatus 89 andinto the recesses .94. of thelever andwill not beoperated,v wh'ile the imperforate part of the key at the left willengage its plungeifland causeinto. descend and release the nailheld; inthe apere ture 59 beneath it. The. nails "released: from 85-1 left; theoperatorwould then pressin the keys controlling the plungers of the two:right-hand tubes andplacethe machin xin the nail-holder 5 +L fallthrough the nail tubes l 712 andintotheapertures 17*of the combined I 13is tlllOWIlOHbWZLICl bythe operation of the cam 6 the heel-former (notherein described) press-block andnail-holder 14. As the rain and thepress-block carrying the nails are g moved forward to the lifts, saidpress-block being immediatelygoverthem At such time thetcrank; disk82,.through the medium of, a

.pit nanrod 95 pivotally connected to-said crank diskat one. end, asindicated at 96,, and at its other-end to a drivebar 97, indi catedat98, carries the said drive bar downward whereby. drivers 99, securedin the Lower end thereof, will enter the apertures I7 andforce thnailsthereininto the heel lifts, and att-he same time the lower end ofthedrive bar; engages the press-block and forces it'downward on the heellifts-to compress thelatter. In building; heels of pieced lifts zit =isusual to' employ three nails,

-VVhere whole lifts areused but a singlenail may be required; There thisis. the case it will be understoodthat a single tube 72 wouldbememployed, having its lower end .terminatingimmediately over thecentral aperture 16 of the press-block and only one of the lized I p I Iw The clutch mechanism 100 (Fig.2) actuated the operator by means of therod 101, neednot be specifically described here-,

in, as it forms no part of the invention, and a similar clutch beingfully described and slots of the. race-way would be utiillustrated in mysaid pending application. It is suflicient to say that the operatorpresses upon a treadle to draw down the rod 101 which throws the clutch5 into operation,

and at the expiration of a complete revolution of the shaft, resultingin a single reciprocation of the ram 13, the clutch is automaticallythrown out of operation and the machine stopped. In such movement thedrive bar 97 will have been lowered and raised.

Referring now particularly to Fig. 7, the slot 67 in the tubes 66 is forthe purpose of permitting the shank of the nail to enter said tube asthe head passes into the aperture 59. In the event that nails too longto pass by the upper edge of the sleeve 71 should be employed, the setscrew '70 would be loosened and the sleeve 71 lowered on the tube 76 topermit the free entrance of the shank of such nail through-the'slot 67.

I claim:

1. In a heel building machine, heel nailing mechanism involving aninclined raceway provided with slots, means for continuously supplyingnails to the slots of said race-way, a nail support at the bottom ofsaid race-way, nail tubes leading therefrom, a horizontally reciprocablenail holder movable by the machine to a position under said tubes, andmeans operated from the machine for releasing the nails from saidsupport in timed relation with the movement of said nail holder.

2. In a heel building machine, heel nailing mechanism involving aninclined slotted race-way, means for continuously supplying nails tosaid raceway, a nail support at the foot of said race-way, a series ofspringtontrolled plungers coeperating with said support, nail tubesleading from said support, a horizontally reciprocable nail holdermovable by the machine to a position under said tubes, and meansactuated from the machine for depressing said plungers to release thenails from said support at timed intervals relative to the movement ofthe nail holder. 1

S. In a heel building machine, in combination with a reciprocatingnail-holder, an-

inclined slotted raceway, means for supplying nails thereto, anail-support at the foot of said race-Way having apertures, nail tubesleading from said apertures and adapted to deliver nails to saidnail-holder, a spring-pressed member projecting into each of saidapertures and adapted to support the head of a nail, a series ofspringcontrolled plungers mounted immediately over said apertures, andmeans operated from the machine for depressing said plungers to forcethe nail heads past said members.

4. In a heel building machine, nail-driv-' vided with means forreleasably holding nails therein, spring-controlled plungers mountedabove said support and adapted to force the nails therefrom, a movablemember for depressing said plungers, and means carried by said memberand adapted to be actuated by the operator to render inoperative anyselected number of said plungers in the operation of said member.

5. In a heel building machine, nail-driving mechanism comprising asupport provided with means for releasably holding nails, a series ofspring-controlled plungers mounted above said support, a depressiblemember for actuating said plungers to cause them to engage the nails andforce them out of said holder, said member being provided in its bottomwith recesses in line with the upper ends of said plungers, and a seriesof movable keys carried by said member and 7 provided with imperforateportions for engaging said plungers and with apertures which, by movingsaid keys, may be brought into alinement with said recesses whereby whenany one of said keys is so moved the upper end of said plunger willenter said aperture and recess and will not be actuated in the operationof said member.

6. In a heel building machine, nail-driving mechanism comprising asupport provided with means for releasably holding a series of nails, aseries of spring-controlled plungers mounted above said support, adepressible member adapted to engage said plungers to force them intoengagement with the nails whereby to release the latter, means operatedby the machine for actuating said member, and a series ofspring-controlled keys mounted on said member and adapted to be moved bythe operator to render a selected number of said plungers inoperativein; the movement of said depressible member. v I

7. In a heel building machine, nail-driving mechanism comprising asupport provided with means for releasably holding nails therein, aseries of spring-controlled plungers mounted above saidv support, aspring-supported leverpivotally'mo-unted at one end above said plungers,and means operated by the machine for engaging the free end of saidlever to depress the same whereby to push said plungers downward andcause them to engage and force the nails out of said holder.

8. In a heel building machine, nail-driving mechanism comprising asupport provided with means for releasably holding nails therein, aseries of spring-controlled plungers mounted above said support, aspring-supported lever pivotally mounted at one end above said plungers,a crank disk,

and a lug on said crank disk adapted in the revolution of the latter toengage the free end of said lever to depress the same whereby to causesaid plungers tobe pushed doWn- Ward to engage the nails and releasethem from said support.

9. In a heel building machine, nailing mechanism comprising anail-support having apertures provided With means for releasably holdingnails therein, tubes supported beneath said apertures, each of saidtubes having a slot in its side, and nail nesses. i WILLIAM WOLFE.Witnesses: I

STELLA HILL,

BRUCE S. ELLIOTT.

Copies of this patent may be obtained for five cents each, by addressingthe commissioneriof Patents,

' Washington, D. c." r a

